Core-js version 3.9.1 is a minor update to the JavaScript standard library implementation, building upon the features and functionality offered in version 3.9.0. Both versions, licensed under MIT, provide comprehensive support for the latest ECMAScript standards, ensuring developers can utilize modern JavaScript features in diverse environments. The package aims to polyfill and provide missing features, improving cross-browser compatibility and streamlining development workflows. The core-js library is invaluable for developers aiming for broad compatibility across different JavaScript runtimes.
The key difference between the two versions appears to be incremental improvements and bug fixes reflected in a slightly larger unpacked size for 3.9.1 (689543 bytes compared to 689042 bytes in 3.9.0). No breaking changes are anticipated between minor versions, the upgrade should be straightforward and beneficial.
Developers should upgrade to version 3.9.1 for the most current, polished, and reliable implementation of ECMAScript features. Both versions are backed by an active open-source community through Open Collective and the project is hosted on GitHub, encouraging participation and transparency. Leveraging core-js helps developers future-proof their JavaScript code and ensures consistent behavior across various platforms. The release dates on February 28 (3.9.1) and February 18 (3.9.0) show recent activity and maintenance of the project
The are not vulnerabilities for the version 3.9.1 of the package core-js